Note: text in square brackets is added for clarity and was not part of the location's name.
Opened on the Vale of Neath Railway.The Vale of Neath Railway station in Merthyr Tydfil opened in 1853. It was a terminus, approached from the south.
It expanded progressively, taking trains from the Brecon and Merthyr Railway in 1868, London and North Western Railway in 1879, and Great Western and Rhymney Joint Railway in 1886.
It also replaced the older Taff Vale Railway's Merthyr Tydfil Plymouth Street in 1877 when a joint Great Western Railway and Taff Vale Railway was opened from Mardy Junction to Brandy Bridge Junction. The Vale of Neath station was closest to the city centre.
The station grew to five platforms and had a timber roof. The original part of this was by Isambard Kingdom Brunel, removed in 1953.
In 1966 the line was cut back to a smaller single platform station Merthyr Tydfil, now consisting of one platform.